I'm about to redo all my equipment, not sure if I need to install any check valves and if so where I would need them?
Here is what i'll have once everything is in and done:
(2) 1 1/2" suction lines going into Jandy 3 way. 2" pipe from 3 way to Intelliflo VF.
2" pipe from VF to Quad DE 100. 2" from Quad to existing Raypack heater. 2" from Raypack to Jandy 3 way. (2) 1 1/2" returns from 3 way.
Somewhere in there i'll have the Autopilot Digital, haven't really researched yet to see where in line i'm supposed to put that.
Also somewhere in there will have a valve to turn on water supply to slide.